Pumice is the only rock that floats on water.
14
Research indicates that plants grow healthier when they are stroked.
173
Iron weighs more after it rusts.
68
4.5 pounds of sunlight strike the Earth each day.
27
There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13
The average temperature at 40,000 feet above sea level is -60 F.
56
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42